[1]
Freitas, P.L. de et al. 2000. Nature and level of organic stock in clayey oxisols under different land use, management systems. Pesquisa Agropecuaria Brasileira. 35, 1 (Jan. 2000), 157–170. DOI:https://doi.org/10.1590/S1678-3921.pab2000.v35.5700.